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Aguirre-Quezada DE, Martínez-Anda JJ, Aguilar-Ayala EL, Chávez-Macías L, Olvera-Rabiela JE.Aguirre-Quezada DE, et al.Rev Neurol. 2006 Aug 16-31;43(4):197-200.Rev Neurol. 2006.PMID: 16883507Free article.Spanish.